Montreal |
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Energy Savings % Indoor Vs. Window R/F |
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A/C is Off |
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Excluding Summer
Energy Savings |
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Definition of
Columns in the table: |
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B
= Average Outdoor
temperature (temperature of Window R/F's Condenser). |
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C
= Average Indoor
temperature, 70 F or higher (temperature of Indoor R/F's Condenser). |
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D
= Average temperature inside the R/F (set constant at 29 F). |
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Ti = C - D
= Temperature difference between the Indoor R/F's evaporator and
condenser. |
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Tw = B - D
= Temperature difference between the Window R/F's evaporator and
condenser. |
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G = Energy Savings % assuming that both R/Fs have the same COP
(efficiency). |
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G
= (Ti - Tw) / Ti
Unlike Column H, it does not include the higher efficiency of window R/F. |
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H = Energy Savings % taking into account the higher COP
(efficiency) of the window R/F. |
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H = 1 - (Tw x Tw) /
(Ti x Ti) Unlike
column G, it includes
the higher efficiency of window R/F. |
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Fahrenheit |
B |
C |
D |
Ti |
Tw |
G |
H |
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JAN |
14 |
70 |
29 |
41 |
-15 |
95% |
95% |
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FEB |
18 |
70 |
29 |
41 |
-11 |
95% |
95% |
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MAR |
29 |
70 |
29 |
41 |
0 |
95% |
95% |
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APR |
42 |
70 |
29 |
41 |
13 |
68% |
90% |
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MAY |
57 |
70 |
29 |
41 |
28 |
32% |
53% |
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JUN |
67 |
70 |
29 |
41 |
38 |
7% |
14% |
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JUL |
70 |
70 |
29 |
41 |
41 |
0% |
0% |
|
AUG |
68 |
70 |
29 |
41 |
39 |
5% |
10% |
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SEP |
60 |
70 |
29 |
41 |
31 |
24% |
43% |
|
OCT |
49 |
70 |
29 |
41 |
20 |
51% |
76% |
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NOV |
36 |
70 |
29 |
41 |
7 |
83% |
95% |
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DEC |
25 |
70 |
29 |
41 |
-4 |
95% |
95% |
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Average Energy Savings % |
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54% |
63% |
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Exact same as above
except in Celsius |
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Celsius |
B |
C |
D |
Ti |
Tw |
G |
H |
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JAN |
-10 |
21 |
-2 |
23 |
-8 |
95% |
95% |
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FEB |
-8 |
21 |
-2 |
23 |
-6 |
95% |
95% |
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MAR |
-2 |
21 |
-2 |
23 |
0 |
95% |
95% |
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APR |
6 |
21 |
-2 |
23 |
7 |
68% |
90% |
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MAY |
14 |
21 |
-2 |
23 |
16 |
32% |
53% |
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JUN |
19 |
21 |
-2 |
23 |
21 |
7% |
14% |
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JUL |
21 |
21 |
-2 |
23 |
23 |
0% |
0% |
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AUG |
20 |
21 |
-2 |
23 |
22 |
5% |
10% |
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SEP |
16 |
21 |
-2 |
23 |
17 |
24% |
43% |
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OCT |
9 |
21 |
-2 |
23 |
11 |
51% |
76% |
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NOV |
2 |
21 |
-2 |
23 |
4 |
83% |
95% |
|
DEC |
-4 |
21 |
-2 |
23 |
-2 |
95% |
95% |
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Average Energy Savings % |
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54% |
63% |
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Exact same as above
except in Kelvin |
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Kelvin |
B |
C |
D |
Ti |
Tw |
G |
H |
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JAN |
263 |
294 |
271 |
23 |
-8 |
95% |
95% |
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FEB |
265 |
294 |
271 |
23 |
-6 |
95% |
95% |
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MAR |
271 |
294 |
271 |
23 |
0 |
95% |
95% |
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APR |
279 |
294 |
271 |
23 |
7 |
68% |
90% |
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MAY |
287 |
294 |
271 |
23 |
16 |
32% |
53% |
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JUN |
292 |
294 |
271 |
23 |
21 |
7% |
14% |
|
JUL |
294 |
294 |
271 |
23 |
23 |
0% |
0% |
|
AUG |
293 |
294 |
271 |
23 |
22 |
5% |
10% |
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SEP |
289 |
294 |
271 |
23 |
17 |
24% |
43% |
|
OCT |
282 |
294 |
271 |
23 |
11 |
51% |
76% |
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NOV |
275 |
294 |
271 |
23 |
4 |
83% |
95% |
|
DEC |
269 |
294 |
271 |
23 |
-2 |
95% |
95% |
|
Average Energy Savings % |
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54% |
63% |
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Back |
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Windowrefrigerator.com |
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PATENT PENDING |
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